Blind Spot Information System - Overview: BLIS®

2021 Ford Edge SE, 4WDSECTION BLIS®
WARNING: This page is about a different car, the 2019 Ford F-550 Super Duty, 2019 Ford F-450 Super Duty, 2019 Ford F-350 Super Duty, and 2019 Ford F-250 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.

BLIS® 

The BLIS® aids the driver in assessing whether another vehicle is present within a specific area (blind spot) to either side of the vehicle, extending rearward approximately 6 m (20 ft) beyond the rear bumper while driving on roads and highways. The system is not designed to prevent contact with other vehicles or objects. The BLIS® uses the exterior mirror BLIS® Light Emitting Diodes (LEDs) to alert the driver that a vehicle has been detected. The BLIS® provides alerts to the driver when the vehicle is in a forward gear and the vehicle speeds is greater than 10 km/h (6 mph).

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.